1 Division of Internal Medicine, Shaare Zedek Medical Center, affiliated with the Hebrew University-Hadassah Medical School, Jerusalem, Israel.
2 Division of Internal Medicine, Infectious Disease Unit, Shaare Zedek Medical Center, affiliated with the Hebrew University-Hadassah Medical School, Jerusalem, Israel.
3 Division of Internal Medicine, Infectious Disease Unit, Shaare Zedek Medical Center, affiliated with the Hebrew University-Hadassah Medical School, Jerusalem, Israel. Electronic address: yinnon@szmc.org.il.